Powder sprayer



J. ANDERSON POWDER SPRAYER Aug. 22, 1933.

Filed Oct. 6, 1932 Patented Aug. 22, 1933 UNIT'ED' STATES PATENT QFFICE;

I rownnlt SPRAYER James Anderson, 'Ashland City, Tenn. Application oet be 1932. serial No'. 636, 09

' 4. claims. (or. r us This invention relates to insecticide spraying means and more particularly to a powder insecticide spraying means. I

An object of this invention is to provide a man- 5 ually operable powder spraying means which is so constructed that the powder can be thoroughly sprayed into-the plants.

Another object of this invention isto provide a collapsible powder container which is so con- 10 structed that the powder therein will be forced out through a broadcasting nozzle connected tov the container.

A further object of the invention is-to provide in a collapsible container of this kind means whereby air is readily admitted-into the container at one side thereof and air prevented from entering the opposite side of the container, sot-hat the insecticide disposed therein'will be thorough-' ly agitated whenthe container is collapsed.

A still further object of the invention is to prov lowing detailed description of the present pre-' ferred embodiment, the same'being illustrated inthe accompanying drawing, wherein:-

Figure 1 ,is a detail perspectiveview partly broken away of a device constructed according to the preferred embodiment of this invention.

Figure 2 is a longitudinal section taken substantially through the longitudinal center of the device.

Figure 3 is an enlarged fragmentary sectional.

view taken on the line 3-3 of Figure 2. a I

Figure 4 is a detail perspective view partly broken away of another form of broadcasting nozzle. L

Referring to the drawing wherein like numerals' of reference indicate corresponding parts throughout the severalviews, the numeral 10 designates generally a receptacle which is adapted to receve' a powder insecticide. This receptacle is provided with a pair of straps 11 so that the receptacle or container 10 may be readily fastened or secured either at the side or at the front of a person so that it may be conveniently operated, as hereinafter described. A U-shaped supporting hook 12 is secured to the rear wall 14 of the receptacle 10 and the U-shaped securing member 12 has one leg thereof attached to the vide a device which may be readily carried on a I at all times have freemovement under the ac- 9 tion .of the spring' 27. A bail or handle 29 is intake valve 25 and covers up the intake port 24. This air chamber 31 has a discharge'port wall 14 and the other leg provided with an out-' ble material which inherently assumes the initial configuration with the walls 16 straight.

1 In the present instance, the wall structure 16 is made of rubber or other inherently resilient material which is secured to the end walls 14 and 15 by means of binding members l'Iand nails or screws 18. I I

The container'lo is provided with a filling neck 19 which has a threaded cap or closure 20.

,An L-shaped pipe connection 21 has onev leg thereof connected to the rear wall 14 of the container 10 at a point adjacent the top of the rear wall, anda flexible pipe 22 is connected to the other leg of the pipe connection 21. A broadcasting nozzle or spray member 23 isconnected to the free end of the flexible pipe 22 and is adapted to be grasped in the hand and directed toward the plants so that the powder being discharged therefrom will enter the branches and leaves of the plants. d In order to provide means for entrance of .air into the receptacle, 10, I haveprovided an intake port 24 in the front wall 15 at a point adjacent the upper end thereofand an inwardly opening valve 25, which is provided with a stem 26 is adapted to close this port 24 upon movement of the wall 15 toward the wall 14. A spring 27 so constantly urges this valve 25 into closed position.

A, guard 28 is disposed about the valve stem 26 and the spring 27 so that the valve 25 will secured as by securing means 30 to thefront Wall 15, and this handle or bail 29 provides means whereby the front wall 15 may be readily moved relative to the rear wall 14. v

In order to thoroughly agitate the powder insecticide in the container 10, I have provided an air chamber 31 which is disposed about the 105 32 at a point adjacent the bottom of the receptacle 1 0, and a flapper valve 33 is adapted to close this discharge port 32 so as to prevent the passage of insecticide into the air chamber 31 but permitting free passage of air from the intake port 24 into the interior of the receptacle 10.

In practice, this flapper or check valve 33 is constructed from a piece of rubber or other resilient material which is so mounted as to normally assume a closed position over the outlet port 32. A second check valve 34: is secured to the free leg of the L-shaped member 31 and is so mounted as to permit the free passage of air and powder insecticide through the L-shaped member 21 while preventing the return movement of air into the container 10 through this discharge connection 21. This check valve 34 is also constructed of yieldable material, such as rubber or'the like, and is so mounted as to be normally disposed in open position to permit the free passage of powder insecticide out through the discharge connection'21. e

As shown in Figure 1, the discharge or spray nozzle 23 is constructed in bell form or in the form of a frusto-conical member but if desired, this discharge nozzle may be constructed, as shown in Figure 4 wherein there is provided a tubular stem 35, which may be connected to the flexible pipe connection 22, and this stem 35 terminates in a flared and flattened discharge nozzle 36.

With the use of this spray nozzle, shown in Figure 4, the insecticide is discharged in arthin flat stream rather than a relatively thick round stream, as will be discharged from the spray nozzle 23.

In the use and operation of this device, the insecticide in powder form is placed into the container 10 through the filling neck 19 after removal of the cap 20. The container 10 may then be mounted on the person of the operator by slipping the hook 12 over a belt or the like, and then tying the straps or tape members 11 about the person of the wearer so that the container 10 will be positioned in a convenient position for operation. The discharge nozzle 23 may then be held in one hand and the bail 29 grasped in the other hand and at the same time, the bail together with the front wall 15 moved toward the rear wall 14. This movement will collapse the wall structure 16 and forcethe air within the container 10 out through the discharge nozzle 23. Air entering the container 10 upon reseat the valve 25 and pass downwardly through the air chamber 31 and open the check valve 33 so that this incoming air will agitate the insecticide within the container.

This container 10 may be constructed of any desired size which may be conveniently carried on the person of the operator, and it is obvious that due to its portability, the device can be used where other structures of a similar type cannot be operated. This device has been par ticularly designed for spraying or broadcasting an insecticide on tobacco plants, cotton plants and other plants which are infested with insects or the like.

It is, of course, understood that various changes and modifications may be made in the details of construction and design of the above specifically described embodiment of this invention without departing from the spirit thereof,

a person.

such changes and modifications being restricted only by the scope of the following claims.

What is claimed is:

1. A powder spraying means comprising a collapsible receptacle, a. nozzle, flexible connecting means connecting the nozzle with the receptacle, said receptacle comprising front and rear walls and a collapsible wall structure disposed between the front and. rear walls, an intake valve dis mediate .wall structureof flexible construction, an

intake valve in one of the walls, an air chamber carried by said one wall and disposed within the receptacle, said' chamber discharging in a downward direction adjacent the bottom of the receptacle, a flexible check valve'carried by the chamher, a dischargetube connected to the rear wall of the receptacle-andto the flexible connecting means, and a second check valve in said discharge tube.

3. A powder spraying means comprising a collapsible receptacle, anozzle and means for connectingvthe nozzle with the receptacle to discharge the powder from the receptaclethrough the nozzle, saidreceptacle comprising a pair of relatively rigid wall members, a flexible. wall structure disposed between the rigid wall members, an intake valve in one of the wall members, an air chamber disposed about the intake valve and extending in a downward direction and provided with a discharge opening adjacent .the bottom thereof, a check valve engaging the discharge port of the air chamber, a guard over the first named valve, a bail secured to the front wall, an L-shaped discharge tube secured to the rear wall, a, check valve in the discharge tube, and a flexible connecting means connecting the nozzle with the discharge tube. V

4. A powder spraying means comprising a collapsible receptacle, a nozzle and means for connecting the nozzle with the receptacle, said recep tacle comprising a pair of relatively rigid wall members, an intake valve on one of the wall members, an air chamber about the intake valve on the inner side of said one wall member, a guard about the outer portion of the intake valve, a check valve carried by the air chamber adjacent the bottom thereof, a bail secured to the outer surface of said one wall member, a dis charge tube connected to the other wall member, a check valve in said discharge tube, a flller neck in said other wall member, a cap for said neck, a supporting hook secured to said other wall member, and flexible means carried by said other Wall member whereby to attach the receptacle to JAMES ANDERSON. 

